On τ-time secure key agreement

Jiang, Shaoquan

doi:10.1007/s11432-014-5176-7

Cited by 1 publication

(2 citation statements)

References 17 publications

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“…With the rapid advances of wireless communications, the conventional cryptographic encryption [1,2] used in the upper layers of communication networks has encountered more challenges in areas such as key distribution and management. For this reason, physical layer security that exploits the characteristics of wireless channels to guarantee secure transmission has recently become an active research area.…”

Section: Introductionmentioning

confidence: 99%

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Robust secure transmission for multiuser MISO systems with probabilistic QoS constraints

Zhang

Jin

Luo

et al. 2016

Sci. China Inf. Sci.

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This paper considers a unicast multiuser multiple-input single-output (MISO) downlink system overheard by multiple single-antenna eavesdroppers. The objective is to jointly design the beamforming vectors and the artificial noise (AN) covariance matrix with imperfect channel state information (CSI) at the transmitter, such that the total transmit power is minimized while satisfying probabilistic quality of service (QoS) constraints at legitimate users and the eavesdroppers. Using Bernstein-type inequalities and the S-procedure, we recast the non-convex power minimization problem as two different convex semidefinite programs (SDPs) which can be solved using interior-point methods. Simulation results show that the proposed methods outperform a nonrobust method and the ones using the isotropic AN.Keywords physical layer security, artificial noise, imperfect CSI, robust beamforming, semidefinite program, outage probability CitationZhang L J, Jin L, Luo W Y, et al. Robust secure transmission for multiuser MISO systems with

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Section: Introductionmentioning

confidence: 99%

“…We assume that Δ b,m ∼ CN (0, Q b,m ), Q b,m 0 and Δ e,k ∼ CN (0, Q e,k ), Q e,k 0. According to (1) and (2), the SINRs of the mth Bob and the k th Eve which eavesdrops the mth data stream can be, respectively, expressed as…”

Section: Introductionmentioning

confidence: 99%